8000 net: renesas: rswitch: enable L3 offload to VMQ device by LKomaryanskiy · Pull Request #171 · xen-troops/linux · GitHub
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net: renesas: rswitch: enable L3 offload to VMQ device #171

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net: renesas: rswitch: enable L3 offload to VMQ device #171

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29 changes: 12 additions & 17 deletions drivers/net/ethernet/renesas/rswitch.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1199,14 +1199,6 @@ static struct rswitch_device *get_dev_by_ip(struct rswitch_private *priv,
u32 ip_search,
bool use_mask);

static bool is_route_to_vmq(struct rswitch_private *priv, u32 dst_ip)
{
struct rswitch_device *rdev;

rdev = get_dev_by_ip(priv, dst_ip, true);
return rdev && rdev->rdev_type == RSWITCH_VMQ_BACK_DEV;
}

static bool rswitch_rx_chain(struct net_device *ndev, int *quota, struct rswitch_gwca_chain *c, bool learn_chain)
{
struct rswitch_device *rdev = ndev_to_rdev(ndev);
Expand Down Expand Up @@ -1323,11 +1315,9 @@ static bool rswitch_rx_chain(struct net_device *ndev, int *quota, struct rswitch
/* The L2 broadcast packets shouldn't be routed */
if (!is_broadcast_ether_addr(ethhdr->h_dest)) {
iphdr = ip_hdr(skb);
if (!is_route_to_vmq(priv, be32_to_cpu(iphdr->daddr))) {
rswitch_add_ipv4_forward(priv, rdev,
be32_to_cpu(iphdr->saddr),
be32_to_cpu(iphdr->daddr));
}
rswitch_add_ipv4_forward(priv, rdev,
be32_to_cpu(iphdr->saddr),
be32_to_cpu(iphdr->daddr));
}
} else if (is_multicast_ether_addr(ethhdr->h_dest)) {
/* The multicast packets that are forwarded by L3 offload to
Expand Down Expand Up @@ -3241,8 +3231,7 @@ static void rswitch_fib_event_add(struct rswitch_fib_event_work *fib_work)
return;

rdev = get_dev_by_ip(fib_work->priv, be32_to_cpu(nh->nh_saddr), false);
/* Do not offload routes, related to VMQs (etha equal to NULL and not vlan device) */
if (!rdev || (!rdev->etha && !is_vlan_dev(rdev->ndev)))
if (!rdev)
return;

new_routing_list = kzalloc(sizeof(*new_routing_list), GFP_KERNEL);
Expand Down Expand Up @@ -4676,8 +4665,14 @@ static void rswitch_forward_work(struct work_struct *work)
if (rswitch_ipv4_resolve(rdev, fwd_work->dst_ip, mac))
goto free;

param.csd = 0;
param.enable_sub_dst = false;
if (rdev->rdev_type != RSWITCH_VMQ_BACK_DEV) {
param.csd = 0;
param.enable_sub_dst = false;
} else {
param.csd = rdev->remote_chain;
param.enable_sub_dst = true;
}

memcpy(param.l23_info.dst_mac, mac, ETH_ALEN);
param.slv = 0x3F;
param.l23_info.priv = fwd_work->priv;
Expand Down
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